WO2005092008A3 - A method for evaluating relative oxygen saturation in body tissues - Google Patents

A method for evaluating relative oxygen saturation in body tissues Download PDF

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Publication number
WO2005092008A3
WO2005092008A3 PCT/US2005/009185 US2005009185W WO2005092008A3 WO 2005092008 A3 WO2005092008 A3 WO 2005092008A3 US 2005009185 W US2005009185 W US 2005009185W WO 2005092008 A3 WO2005092008 A3 WO 2005092008A3
Authority
WO
WIPO (PCT)
Prior art keywords
oxygen saturation
relative
blood
hemoglobin
changes
Prior art date
Application number
PCT/US2005/009185
Other languages
French (fr)
Other versions
WO2005092008A2 (en
Inventor
Bahram Khoobehi
James M Beach
Original Assignee
And Agricultural And Mechanica
Bahram Khoobehi
James M Beach
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by And Agricultural And Mechanica, Bahram Khoobehi, James M Beach filed Critical And Agricultural And Mechanica
Priority to US10/593,175 priority Critical patent/US7949387B2/en
Priority to AU2005226667A priority patent/AU2005226667B2/en
Priority to CA002559900A priority patent/CA2559900A1/en
Priority to EP05725929A priority patent/EP1729644A2/en
Publication of WO2005092008A2 publication Critical patent/WO2005092008A2/en
Publication of WO2005092008A3 publication Critical patent/WO2005092008A3/en
Priority to IL178129A priority patent/IL178129A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A61B5/14555—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases specially adapted for the eye fundus

Abstract

A new method was discovered to analyze continuous spectral curves to determine relative hemoglobin oxygen saturation, using spectral curves collected from a continuous range of wavelengths from about 530 nm to about 584 nm, including spectra from transmitted or reflected light. Using isosbestic points and curve areas, a relative saturation index was calculated. With this method, noninvasive, in vivo measurement of relative oxygen saturation was made using light reflected from blood vessels in the eye and to map and measure relative changes in hemoglobin oxygen saturation in primate retinal vessels and optic nerve head in response to controlled changes in inspired oxygen and intraocular pressure (IOP). This method could also measure oxygen saturation from other blood vessels that reflect light sufficient to give a clear spectra from the blood hemoglobin. Changes in blood oxygen saturation can be monitored with this method for early detection of disease.
PCT/US2005/009185 2004-03-19 2005-03-18 A method for evaluating relative oxygen saturation in body tissues WO2005092008A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/593,175 US7949387B2 (en) 2004-03-19 2005-03-18 Method for evaluating relative oxygen saturation in body tissues
AU2005226667A AU2005226667B2 (en) 2004-03-19 2005-03-18 A method for evaluating relative oxygen saturation in body tissues
CA002559900A CA2559900A1 (en) 2004-03-19 2005-03-18 A method for evaluating relative oxygen saturation in body tissues
EP05725929A EP1729644A2 (en) 2004-03-19 2005-03-18 A method for evaluating relative oxygen saturation in body tissues
IL178129A IL178129A (en) 2004-03-19 2006-09-17 Method for evaluating relative oxygen saturation in body tissues

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55445604P 2004-03-19 2004-03-19
US60/554,456 2004-03-19

Publications (2)

Publication Number Publication Date
WO2005092008A2 WO2005092008A2 (en) 2005-10-06
WO2005092008A3 true WO2005092008A3 (en) 2006-01-26

Family

ID=35056731

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/009185 WO2005092008A2 (en) 2004-03-19 2005-03-18 A method for evaluating relative oxygen saturation in body tissues

Country Status (6)

Country Link
US (1) US7949387B2 (en)
EP (1) EP1729644A2 (en)
AU (1) AU2005226667B2 (en)
CA (1) CA2559900A1 (en)
IL (1) IL178129A (en)
WO (1) WO2005092008A2 (en)

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JP7313280B2 (en) 2016-09-09 2023-07-24 インテュイティブ サージカル オペレーションズ， インコーポレイテッド Simultaneous White Light and Hyperspectral Light Imaging System
JP7436066B2 (en) 2022-03-23 2024-02-21 國立中正大學 How to identify arteries and veins in fundus images

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EP1729644A2 (en) * 2004-03-19 2006-12-13 Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College A method for evaluating relative oxygen saturation in body tissues
WO2006107947A2 (en) * 2005-04-04 2006-10-12 Hypermed, Inc. Hyperspectral imaging in diabetes and peripheral vascular disease
US8218143B2 (en) * 2005-09-26 2012-07-10 The United States Of America As Represented By The Secretary Of The Army Noninvasive detection of elements and/or chemicals in biological matter
US20070224694A1 (en) * 2006-02-10 2007-09-27 Puchalski Daniel M Method and system for hyperspectral detection of animal diseases
US20080221416A1 (en) * 2007-03-09 2008-09-11 Nellcor Puritan Bennett Llc System and method for detection of macular degeneration using spectrophotometry
WO2010019515A2 (en) * 2008-08-10 2010-02-18 Board Of Regents, The University Of Texas System Digital light processing hyperspectral imaging apparatus
WO2011137115A1 (en) * 2010-04-29 2011-11-03 Eye02 Scan Llc Determination of oxygen saturation in a tissue of visual system
US10413349B2 (en) * 2011-03-04 2019-09-17 Covidien Lp System and methods for identifying tissue and vessels
WO2013076336A1 (en) 2011-11-23 2013-05-30 Instrumentación Y Oftalmología (Insoft, S.L.) Method and device for measuring haemoglobin in the eye
JP2014036759A (en) 2012-08-17 2014-02-27 Hoya Corp Electronic endoscope system and light source device for endoscope
US10226297B2 (en) 2012-09-06 2019-03-12 Covidien Lp Medical devices and methods incorporating frustrated total internal reflection for energy-efficient sealing and cutting of tissue using light energy
US10231782B2 (en) 2012-09-06 2019-03-19 Covidien Lp Medical devices and methods incorporating frustrated total internal reflection for energy-efficient sealing and cutting of tissue using light energy
EP2777491A1 (en) * 2013-03-11 2014-09-17 Senspec GmbH Method and device for monitoring vital functions
WO2014176359A1 (en) * 2013-04-24 2014-10-30 The Schepens Eye Research Institute, Inc. Predicting retinal degeneration based on three-dimensional modeling of oxygen concentration
CN105324064B (en) 2013-05-30 2017-10-27 Hoya株式会社 Generate the method and apparatus for showing biomass density distributed image in biological tissue
TWI493171B (en) * 2013-06-27 2015-07-21 Univ China Medical System and method for analyzing tissue cells by using hyperspectral image
JP6204314B2 (en) 2014-09-03 2017-09-27 Hoya株式会社 Electronic endoscope system
JP6356051B2 (en) 2014-11-21 2018-07-11 Hoya株式会社 Analytical apparatus and method of operating analytical apparatus
WO2017094010A1 (en) 2015-11-30 2017-06-08 Technion Research & Development Foundation Limited Hemoglobin measurement from a single vessel
EP3427022A1 (en) 2016-03-10 2019-01-16 Regents of the University of Minnesota Spectral-spatial imaging device
CN106691458B (en) * 2016-11-19 2019-11-12 广东乐源数字技术有限公司 A kind of method and system of oximetry data optimization
MX2021000628A (en) 2018-07-16 2021-05-27 Bbi Medical Innovations Llc Perfusion and oxygenation measurement.

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US5355880A (en) * 1992-07-06 1994-10-18 Sandia Corporation Reliable noninvasive measurement of blood gases
US5553615A (en) * 1994-01-31 1996-09-10 Minnesota Mining And Manufacturing Company Method and apparatus for noninvasive prediction of hematocrit
US5983120A (en) * 1995-10-23 1999-11-09 Cytometrics, Inc. Method and apparatus for reflected imaging analysis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7313280B2 (en) 2016-09-09 2023-07-24 インテュイティブ サージカル オペレーションズ， インコーポレイテッド Simultaneous White Light and Hyperspectral Light Imaging System
JP7436066B2 (en) 2022-03-23 2024-02-21 國立中正大學 How to identify arteries and veins in fundus images

Also Published As

Publication number Publication date
IL178129A (en) 2012-07-31
AU2005226667B2 (en) 2010-04-01
US20080255457A1 (en) 2008-10-16
AU2005226667A1 (en) 2005-10-06
CA2559900A1 (en) 2005-10-06
US7949387B2 (en) 2011-05-24
IL178129A0 (en) 2008-03-20
WO2005092008A2 (en) 2005-10-06
EP1729644A2 (en) 2006-12-13

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